CN203604435U - Z-shaped rotary supporting device - Google Patents
Z-shaped rotary supporting device Download PDFInfo
- Publication number
- CN203604435U CN203604435U CN201320784373.3U CN201320784373U CN203604435U CN 203604435 U CN203604435 U CN 203604435U CN 201320784373 U CN201320784373 U CN 201320784373U CN 203604435 U CN203604435 U CN 203604435U
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- CN
- China
- Prior art keywords
- raceway
- race
- ring
- roller
- seat ring
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- Withdrawn - After Issue
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Abstract
The utility model discloses a Z-shaped rotary supporting device, which comprises an upper seat ring, a lower seat ring, balls, a pin roller, and a pressure ring, wherein the axes of the upper seat ring and the lower seat ring are coincided, the upper seat ring and the lower seat ring are nested together through ladder surfaces which are mutually contacted, and two opposite Z shapes are formed in a longitudinal profile passing through the axes; upper, middle and lower annular roller beds are arranged between the upper seat ring and the lower seat ring from top to bottom and are respectively provided with an upper roller bed pin roller, the balls and the lower roller bed pin rollers, the upper annular roller bed and the lower annular roller bed are respectively provided with an inclination angle, the directions of the inclination angles are opposite, the pressure ring is arranged above the upper roller bed pin roller, a plurality of set screws for fixing the pressure ring are arranged on the upper seat ring, and wheel teeth are arranged on the outer surface of the upper seat ring or the inner surface of the lower seat ring. According to the Z-shaped rotary supporting device, a rotary support has strong capacity for bearing load from radial and overturning directions while the axial bearing capacity of the rotary support can be greatly increased; the rotary support has certain clearance self-regulation function, so that the accuracy of the rotary support can be improved, the stability can be enhanced, and the noise can be decreased.
Description
Technical field
The utility model relates to a kind of novel rotation supporting, particularly relates to support and the swivel gear of large-scale all-rotation dumping plough.
Background technique
Pivoting support is a kind ofly can bear the large size bearing of larger axial load, radial load and tilting moment simultaneously, can realize the several functions such as support to structure vitals, rotation, transmission.Along with China's expanding economy, it uses more and more extensive in the equipment such as large-scale handling machinery, digger, constructional engineering machinery, harbour machinery.
At present, the pivoting support major part that China produces still adopts rolling bearing rolling element-rollaway type structure, and its structural type mainly contains four kinds of single-row ball types, single crossed pin roller type, double ball formula, three organ timbering formulas.Single-row ball type, that double ball formula is born radial capacity is stronger, but axial carrying capacity a little less than, and using the some contact raceway of steel ball as support, support point of contact few, exist stressed unbalanced shortcoming, and operation is not steady, noise is high; Single crossed pin roller type radially bearing capacity is strong, turns round more steadily, but axial carrying capacity and antidumping moment ability are less; Although three organ timbering formula comprehensive load capacities are strong, manufacturing process complexity is expensive, changes difficult in maintenance.
Model utility content
For above-mentioned prior art, the utility model provides a kind of Z-type rotary supporting device, axially, radially bearing capacity is high, antidumping moment ability is strong, manufacturing process is simple, changes easy to maintenancely, and cost is low, the utility model Z-type rotary supporting device is rolling revolving supporting, and pivoting support precision high, operate steadily, noise is low.
In order to solve the problems of the technologies described above, a kind of Z-type rotary supporting device of the utility model, comprise top race, bottom race, ball, roller and pressure ring, the dead in line of described top race and bottom race, described top race and described bottom race nest together by the ladder surface being in contact with one another, and on the longitudinal section of crossing axis, form two relative Z-shapeds, between described top race and bottom race, be provided with ring raceway from top to bottom, intermediate annular raceway and lower ring raceway, in described upper ring raceway, be provided with raceway roller, in described lower ring raceway, be provided with lower raceway roller, in described intermediate annular raceway, be provided with ball, described upper ring raceway is respectively equipped with the relative tilt angle of direction with lower ring raceway, the top of described upper raceway roller is provided with pressure ring, the upper-end surface of described top race is provided with multiple screws that press closer for fixed pressure ring, described bottom race is provided with ball handling hole and handling hole sealing block and circular cone locating stud, described upper ring raceway, intermediate annular raceway and lower ring raceway are provided with lubricated and sealing configuration respectively, the outer surface of described top race or the internal surface of described bottom race are provided with the gear teeth.
Compared with prior art, the beneficial effects of the utility model are:
The difference of pivoting support of the present utility model and prior art is that the utility model has adopted horizontal upper and lower double-row roller-type raceway, rely on pressure ring to make the abundant contact of upper and lower ring raceway, many raceways before being different from are longitudinally arranged, increase the Line of contact number of longitudinal bearing load, greatly improved the axial carrying capacity of pivoting support.In addition by the ball type raceway of intermediate annular raceway, make pivoting support there is equally very strong bearing radially and the ability of the direction load of toppling.
In the utility model, the raceway of two rollers has relative small angle of inclination, make pivoting support there is certain self-regulating gap function, improve the precision of pivoting support, optimize up and down stressed of rolling element, make inner ring (bottom race 2) and outer ring (top race 1) reasonable stress, the stability that has strengthened pivoting support, has reduced noise.
Accompanying drawing explanation
Fig. 1 is the utility model Z-type rotary supporting device embodiment one structure sectional view;
Fig. 2 is the utility model Z-type rotary supporting device embodiment two structure sectional view.
In figure: 1-top race, 2-bottom race, 3-pressure ring, 4-Cock screw, the upper raceway roller of 5-, raceway roller under 6-, 7-ball, 8-loads and unloads sealing block, 9-circular cone locating stud, 10-Stamping Steel Ribbon, 11-seal ring, 12-oil nozzle, 13-top race construction bolt hole, 14-bottom race construction bolt hole.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of Z-type rotary supporting device of the utility model, comprises top race 1, bottom race 2, ball 7, roller 5,6 and pressure ring 3.
The dead in line of described top race 1 and bottom race 2, described top race 1 and described bottom race 2 nest together by the ladder surface being in contact with one another, on the longitudinal section of crossing axis, form two relative Z-shapeds, be that upper and lower seat ring is linked in together by two relative " Z " type structures, compared with the pivoting support convenient disassembly of other structural types, change easy to maintenance.
Between described top race 1 and bottom race 2, be provided with ring raceway, intermediate annular raceway and lower ring raceway from top to bottom,, wherein the corner of top race 1 and bottom race 2 interior rings has all offered and has had small skew angle annular trough with straight angle, after fit, form the ring-type roller path that upper and lower two sectional shapes are rectangle; In described lower ring raceway, be provided with lower raceway roller 6, the Race Line Contact that the direct and upper and lower seat ring in lower raceway roller 6 sides forms; In described upper ring raceway, be provided with raceway roller 5, the top of described upper raceway roller 5 is provided with pressure ring 3, the upper-end surface of described top race 1 is provided with and multiplely presses closer screw 4 for fixed pressure ring 3, the side of upper raceway roller 5 contacts with pressure ring, bottom race line, pressure ring 3 relies on Cock screw 4 adjusting plays on top race, makes fully contact of upper and lower raceway roller; Intermediate annular raceway is arranged on the vertical plane of top race 1 and bottom race 2 suit places, in described intermediate annular raceway, is provided with ball 7, and ball 7 is distributed in intermediate annular raceway, between its every adjacent ball, has ball spacing block; Described bottom race 2 be circumferentially with ball handling hole and handling hole sealing block 8 and circular cone locating stud 9, the axial taper positioning hole that described handling sealing block 8 and top race 1 end face are provided with, above-mentioned circular cone locating stud 9 is assemblied in described taper positioning hole, and handling hole sealing block 8 is fixed on the tram in bottom race 2 by circular cone locating stud 9.
Described upper ring raceway is respectively equipped with the certain minute angle of the relative inclination of direction with lower ring raceway, make upper and lower ring raceway true dip direction relative, in the time of stressed increase, contact can be more and more tightr like this, avoids local pressure, makes up and down stressed more even of rolling element.
Described upper ring raceway, intermediate annular raceway and lower ring raceway are provided with lubricated and sealing configuration respectively.Described lubricating structure is made up of oilhole, oil duct and oil nozzle,, each raceway place of described top race 1 and bottom race 2 is all provided with oil hole, one end of oil hole communicates with raceway, the other end communicates with the outer surface of top race 1 and the internal surface of bottom race 2, and be provided with oil nozzle, be convenient to grease up.Described sealing configuration comprises seal ring 11 and Stamping Steel Ribbon 10, and described seal ring is arranged between described top race 1 and described bottom race 2 and is positioned at described lower ring raceway periphery; Described Stamping Steel Ribbon 10 is inlaid between the internal surface of described pressure ring 3 and the upper-end surface of described bottom race 2.Seal ring 11 and Stamping Steel Ribbon 10 can seal raceway, have played and have prevented that dust and other impurities from entering raceway and preventing the effect that lubricant grease leaks.
On described top race 1 and described bottom race 2, be equipped with installation screw 13,14, to install back rotary device and base.
The difference of pivoting support of the present utility model and prior art is that the utility model has adopted horizontal upper and lower double-row roller-type raceway, rely on adjustment pressure ring to make the abundant contact of upper and lower ring raceway, many raceways before being different from are longitudinally arranged, increase the Line of contact number of longitudinal bearing load, greatly improved the axial carrying capacity of pivoting support.In addition by the ball type raceway of intermediate annular raceway, make pivoting support there is equally very strong bearing radially and the ability of the direction load of toppling.
And raceway has small angle of inclination, make pivoting support there is certain self-regulating gap function, improve the precision of pivoting support, optimize up and down stressed of rolling element, make inner ring (bottom race 2) and outer ring (top race 1) reasonable stress, the stability that has strengthened pivoting support, has reduced noise.
Embodiment one: Z-type pivoting support as shown in Figure 1, is applicable to severe duty.Its structure is mainly made up of top race 1, bottom race 2, pressure ring 3, Cock screw 4, ball 7, upper raceway roller 5, lower raceway roller 6, handling sealing block 8, circular cone locating stud 9, Stamping Steel Ribbon 10, seal ring 11.Top race 1, bottom race 2 are linked in together by two relative " Z " type structures, and the dead in line of top race 1, bottom race 2; After top race 1, bottom race 2 fits, form upper and lower roller type raceway and middle ball type raceway, upper and lower ring raceway relies on roller to contact bearing load with the line of raceway by upper raceway roller 5, lower raceway roller 6 respectively, and upper and lower ring raceway becomes lateral arrangement, increase the Line of contact number of bearing load simultaneously.Adjusting pressure ring 3 by the Cock screw 4 on top race makes the roller of upper and lower ring raceway can contact, and the upper and lower ring raceway small angle that tilts, not only strengthen the radially bearing capacity of pivoting support, and optimized the stressed proterties up and down that goes up raceway roller 5 and lower raceway roller 6 in pivoting support, improve the precision of Z-type pivoting support.Intermediate annular raceway relies on the point of ball 7 to contact and mainly bears radial load and tilting moment.On upper and lower seat ring 1, be provided with altogether 3 oil holes, and oil nozzle 12 is installed, at needs when adding lubricating grease in raceway, in just from oil nozzle 12 to raceway, carry out shot lubrication fat, guarantee in raceway, to there is sufficient lubricating grease, reduce the wearing and tearing between rolling element and raceway, make body revolution smooth and easy, extend raceway working life.Top race 1 internal surface is also provided with ball mounting hole, is provided with handling sealing block 8 in ball mounting hole, facilitates the clean and maintenance of ball; Handling sealing block 8 is realized location, sealing by circular cone locating stud 9; After ball takes off, we just can disassemble top race 1 and bottom race 2 very easily, thereby realize the clean and maintenance to upper and lower ring raceway and roller.Upper ring raceway opening is provided with Stamping Steel Ribbon 10, and lower ring raceway opening is provided with seal ring 11, and Stamping Steel Ribbon 10 and seal ring 11 can seal raceway, plays the lubricating grease preventing in raceway and leaks and dustproof effect; Stamping Steel Ribbon 10 is embedded in the circular groove of pressure ring 3, and seal ring 11 is embedded in the circular groove of bottom race 2.When use, utilize the construction bolt hole 14 on bottom race 2 pivoting support to be fixed on the base of equipment, top race 1 connects revolution part by construction bolt hole 13, is connected to form gear transmission by the gear teeth and the drive unit of top race 1, drive top race 1 to rotate, thereby make revolution part rotation.
Embodiment two: Z-type pivoting support as shown in Figure 2, its structure and embodiment one are basic identical, are applicable to severe duty.Difference is that the internal surface of bottom race 2 is provided with the gear teeth, is connected to form gear transmission by the gear teeth and drive unit, realizes the rotation of revolution part.
Although the utility model is described in conjunction with figure above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that not departing from the utility model aim, can also make a lot of distortion, within these all belong to protection of the present utility model.
Claims (4)
1. a Z-type rotary supporting device, comprise top race (1), bottom race (2), ball (7), roller (5), (6) and pressure ring (3), it is characterized in that, the dead in line of described top race (1) and bottom race (2), described top race (1) and described bottom race (2) nest together by the ladder surface being in contact with one another, and on the longitudinal section of crossing axis, form two relative Z-shapeds, between described top race (1) and bottom race (2), be provided with ring raceway from top to bottom, intermediate annular raceway and lower ring raceway, in described upper ring raceway, be provided with raceway roller (5), in described lower ring raceway, be provided with lower raceway roller (6), in described intermediate annular raceway, be provided with ball (7), described upper ring raceway is respectively equipped with the relative tilt angle of direction with lower ring raceway, the top of described upper raceway roller (5) is provided with pressure ring (3), the upper-end surface of described top race (1) is provided with and multiplely presses closer screw (4) for fixed pressure ring (3), described bottom race (2) is provided with ball handling hole and handling hole sealing block (8) and circular cone locating stud (9), described upper ring raceway, intermediate annular raceway and lower ring raceway are provided with lubricating structure and sealing configuration respectively, the internal surface of the outer surface of described top race (1) or described bottom race (2) is provided with the gear teeth.
2. Z-type rotary supporting device according to claim 1, is characterized in that, described lubricating structure is made up of oilhole, oil duct and oil nozzle.
3. Z-type rotary supporting device according to claim 1, it is characterized in that, described sealing configuration comprises seal ring (11) and Stamping Steel Ribbon (10), and described seal ring is arranged between described top race 1 and described bottom race 2 and is positioned at described lower ring raceway periphery; Described Stamping Steel Ribbon (10) is inlaid between the internal surface of described pressure ring (3) and the upper-end surface of described bottom race (2).
4. Z-type rotary supporting device according to claim 1, is characterized in that, on described top race (1) and described bottom race (2), is equipped with installation screw (13,14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784373.3U CN203604435U (en) | 2013-11-30 | 2013-11-30 | Z-shaped rotary supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784373.3U CN203604435U (en) | 2013-11-30 | 2013-11-30 | Z-shaped rotary supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604435U true CN203604435U (en) | 2014-05-21 |
Family
ID=50717112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320784373.3U Withdrawn - After Issue CN203604435U (en) | 2013-11-30 | 2013-11-30 | Z-shaped rotary supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604435U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603866A (en) * | 2013-11-30 | 2014-02-26 | 天津重钢机械装备股份有限公司 | Z-shaped slewing bearing device |
| CN104595364A (en) * | 2015-01-03 | 2015-05-06 | 安徽枞晨回转支承有限公司 | Three-roller-path slewing bearing with stepped bonding seam between upper ring and lower ring |
| CN114483773A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Three-row bearing with changed radial raceway structure |
-
2013
- 2013-11-30 CN CN201320784373.3U patent/CN203604435U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603866A (en) * | 2013-11-30 | 2014-02-26 | 天津重钢机械装备股份有限公司 | Z-shaped slewing bearing device |
| CN104595364A (en) * | 2015-01-03 | 2015-05-06 | 安徽枞晨回转支承有限公司 | Three-roller-path slewing bearing with stepped bonding seam between upper ring and lower ring |
| CN114483773A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Three-row bearing with changed radial raceway structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140521 Effective date of abandoning: 20180522 |
|
| AV01 | Patent right actively abandoned |